VIDEO: Man seen on video right after he allegedly killed his fiancé

Surveillance video that was played during a murder trial in Sydney, Australia last week shows a man pacing inside an elevator just moments after he allegedly killed his fiancé.

Simon Gittany is accused of throwing his fiancé, Lisa Harnum, from their 15th-floor balcony. He is seen on surveillance footage moments before the crime - dragging Harnum into their apartment - and then moments after the alleged crime - pacing and grabbing his head as he rides the elevator to the building's lobby.

Gittany has pleaded not guilty and claims his fiancé stepped over the balcony railing and fell, Sky News reports.